Answer the question.Which one of the equations below matches the graph?
A. y = 4 cos(2x)
B. y = 4 cos
C. y = 4 sin
D. y = 2 cos
Answer: A
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Solve the problem.Find the area of the region in the first quadrant bounded by the line y = 8x, the line x = 1, the curve 
and the x-axis.
A. 
B. 6
C. 
D. 
Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y - ex - 2, y(2) = 2, dx = 0.5
A. y1 = -2.0945, y2 = -10.4330, y3 = -25.6523 B. y1 = -1.2945, y2 = -8.8330, y3 = -25.3323 C. y1 = -0.8945, y2 = -8.0330, y3 = -25.1723 D. y1 = -1.6945, y2 = -9.6330, y3 = -25.4923
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(9, 3)} B. {(9, 4)} C. {(8, 4)} D. no solution; ?
Perform the exponentiation. 
2
A. 
B. 
C. - 
D. - 